migration from vsphere

asked 2020-06-01 08:38:23 -0500

need advice, i'm trying to migrate our vcenter cluster to another solution. right now considering to use openstack with kvm to replace this. but i have a several question (sorry noob question): - does kvm with openstack offers similar feature like vmotion or storage vmotion ? - for clustering multiple compute node, do we are able to clsuter different hardware ? any caveats ? - we're using traditional SAN and we want to use it fully like using it with vmfs datastore on vsphere. any ideas how to achieve similar things with openstack ? - does freebsd OS are supported as guest vm on openstack environment ?


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OpenStack has Live Migration and Storage Migration. I can't say how they compare with Vmotion.

OpenStack includes no clustering. You will have to set it up yourself. Why cluster compute nodes, though?

I don't think OpenStack makes statements about supported guest OSs. I guess FreeBSD would work.

Bernd Bausch gravatar imageBernd Bausch ( 2020-06-01 09:55:47 -0500 )edit

if i have several host some using xeon e3 v3 4 core, some with e5 v4 8 core the live migration will work ? in vmware htis could work using evc. how about in openstack ? need more information.

harajukakei gravatar imageharajukakei ( 2020-06-04 03:18:20 -0500 )edit

I would say this depends on the instructions that the instances use. If they are optimized for a very narrow CPU type, migration won't be possible.

My remark is not based on experience, though.

Bernd Bausch gravatar imageBernd Bausch ( 2020-06-04 22:12:10 -0500 )edit

There is a recent spec around this problem: https://specs.openstack.org/openstack.... Not sure if it's relevant, not sure if it has been implemented.

Bernd Bausch gravatar imageBernd Bausch ( 2020-06-04 22:14:36 -0500 )edit

And here a solution for a similar problem on RHOSP (subscription required): https://access.redhat.com/solutions/3....

Bernd Bausch gravatar imageBernd Bausch ( 2020-06-04 22:16:17 -0500 )edit